military in afghanistan. so, seth, have david cameron asking the taliban to stop fighting, put down their weapons, join the political process. what do you think the chances are that might happen? >> there are elements of the taliban and other insurgent groups that are willing to talk about this option. they have been fighting for three decades in afghanistan. people are tired. i think right now what we're seeing is some elements willing, some elements unwilling. based on the fact that many of them believe they are winning right now, that the u.s. and other allies are leaving, i think it is unlikely that they will cut a deal now. not wait it out -- why not wait it out? >> to what extent is the taliban looking at things like this letter-signing, seeing the political will disappearing, and thinking, why should we negotiate? why not sit things out? >> this to the conflict within the u.s. -- and they see the political conflict within the u.s. they say that we should be committed to this fight. rc not a robust disc